Question:Is there an easy way to remember which direction the light bends when it travels from one material to another?
Yes, use the mnemonic TAGAGA. A mnemonic is a memory aid. (pronounced - NEMONIC)
TAGAGA stands for:
Light bends: Towards the normal going from Air to Glass; Away from the normal going from Glass to Air.
A mnemonic is a memory aid. (pronounced - NEMONIC)